.flexCenter(@direction:row){
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
}.relative(@left:0px,@top:0px) {
    position: relative;
    left: @left;
    top: @top;
  }
  .absolute(@left:0px,@top:0px) {
    position: absolute;
    left: @left;
    top: @top;
  }
  .toBlock(@width:0px,@height:0px) {
    display: block;
    width: @width;
    height: @height;
  }
  .center(@top:0) {
    margin: @top auto;
  }
  .flexCenter(@direction:row){
      display:flex;
      flex-direction:row;
      justify-content:center;
      align-items:center;
  }
  .container {
      width: 1200px;
      margin:0 auto;
  }
  
